Using topic shifts in XML retrieval at INEX 2006

被引：0
|
作者：
Ashoori, Elham [1 ]
Lalmas, Mounia [1 ]
机构：
[1] Queen Mary Univ London, London E1 4NS, England
来源：
COMPARATIVE EVALUATION OF XML INFORMATION RETRIEVAL SYSTEMS | 2007年 / 4518卷
关键词：
D O I：
暂无
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
This paper describes the retrieval approaches used by Queen Mary, University of London in the INEX 2006 ad hoc track. In our participation, we mainly investigate element-specific smoothing method within the language modelling framework. We adjust the amount of smoothing required for each XML element depending on its number of topic shifts to provide a focused access to XML elements in the Wikipedia collection. We also investigate whether using non-uniform priors is beneficial for the ad hoc tasks.
引用
收藏
页码：261 / 270
页数：10
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